17412325561 has 2 divisors, whose sum is σ = 17412325562. Its totient is φ = 17412325560.

The previous prime is 17412325481. The next prime is 17412325573. The reversal of 17412325561 is 16552321471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15096791161 + 2315534400 = 122869^2 + 48120^2 .

It is a cyclic number.

It is not a de Polignac number, because 17412325561 - 2¹⁷ = 17412194489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17412325561.

It is not a weakly prime, because it can be changed into another prime (17412325661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8706162780 + 8706162781.

It is an arithmetic number, because the mean of its divisors is an integer number (8706162781).

Almost surely, 2^17412325561 is an apocalyptic number.

It is an amenable number.

17412325561 is a deficient number, since it is larger than the sum of its proper divisors (1).

17412325561 is an equidigital number, since it uses as much as digits as its factorization.

17412325561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 37.

The spelling of 17412325561 in words is "seventeen billion, four hundred twelve million, three hundred twenty-five thousand, five hundred sixty-one".